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Study on Structural Design and Safety of Shed Tunnels in the Scenic Area of Changbai Mountains
(1 State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059;2 Jilin Geological Environment Monitoring Station, Changchun 130061)
Abstract Geological disasters occur frequently in the south scenic area of Changbai Mountain, especially the dan? gerous rock masses on the upper part of the slope along the highway in the scenic area are well developed, which can lead to landslide and rockfall disasters, posing a threat to the safety of life and property of tourists. In order to ensure the smooth operation of the south scenic area of Changbai Mountain, it is planned to build a shed tunnel to protect the highway in the Grand Canyon section of Yalu River. The shed tunnel is designed in such a way that it has both the basic protection functions and the architectural characteristics in the Changbai Mountain area, so as to be integrated into the surrounding environment. Besides, the stability of the designed shed tunnel under the impact of dangerous rock mass is verified through the impact numerical simulation calculation, indicating that the design scheme of the shed tunnel is safe and feasible.
Abstract：
Geological disasters occur frequently in the south scenic area of Changbai Mountain, especially the dan? gerous rock masses on the upper part of the slope along the highway in the scenic area are well developed, which can lead to landslide and rockfall disasters, posing a threat to the safety of life and property of tourists. In order to ensure the smooth operation of the south scenic area of Changbai Mountain, it is planned to build a shed tunnel to protect the highway in the Grand Canyon section of Yalu River. The shed tunnel is designed in such a way that it has both the basic protection functions and the architectural characteristics in the Changbai Mountain area, so as to be integrated into the surrounding environment. Besides, the stability of the designed shed tunnel under the impact of dangerous rock mass is verified through the impact numerical simulation calculation, indicating that the design scheme of the shed tunnel is safe and feasible.
WEN Xu1 PEI Xiangjun1 PEI Zuan1 YANG Hailong1 CHEN Zhenlin1 ZHANG Yichen2
.Study on Structural Design and Safety of Shed Tunnels in the Scenic Area of Changbai Mountains[J] MODERN TUNNELLING TECHNOLOGY, 2021,V58(2): 151-157
2021, Vol. 58 